The PFBR can use the thorium fuel cycle and it's an established fact that India is home to world's second largest reserves of Thorium.

The PFBR at Kalpakkam uses Uranium-238 (not Thorium) to breed the new fissile material inside a sodium-cooled fast reactor. India's 'Bharat Heavy Electricals Limited (BHEL) is responsible for harnessing the power produced by the reactor.